← View Generic B1989 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B1989: B1989: Turn Signal/Hazard Light Malfunction

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B1989 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B1989 code indicates a problem with the turn signal or hazard light system, which may cause the lights to malfunction or not function at all.
⚠️

Symptoms

  • • Turn signals not working
  • • hazard lights not functioning
  • • or a combination of both
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Common Causes

  • • Faulty turn signal switch
  • • blown fuse
  • • wiring issue
  • • or a problem with the turn signal module
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How to Fix B1989 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the turn signal switch for any signs of wear or damage. Replace if necessary. 2. Check the fuses and replace if blown. 3. Inspect the wiring for any signs of damage or corrosion. Repair or replace as needed. 4. Check the turn signal module for any signs of failure. Replace if necessary.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Turn signal switch Shop ↗ Fuses Shop ↗ Wiring harness Shop ↗ Turn signal module Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B1989

B1987 Sequential Code

B1987: Power Window Regulator Malfunction

Medium
B1988 Sequential Code

B1988: Seat Switch Circuit Malfunction

Medium
B1990 Sequential Code

B1990: Body Control Module (BCM) Security System Malfunction

High
B1991 Sequential Code

B1991: Audio System Malfunction

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system